import WebUploader from 'webuploader'
import 'webuploader/dist/webuploader.css'
import modal from './modal'
import Message from './message'
import '../less/fileUploader.less'

var modalobj = null;
var obj = {
    options: {},
    //加载远程图片
    getImageList: function (url) {
        var options = this.options;
        //添加获取的类型是后台用户还是前台用户
        var post = {extensions: options.extensions};
        if (window.system) {
            post.user_type = window.system.user_type
        }
        post.csrf_token = options.data.csrf_token;
        $.post(url, post, function (res) {
            if (res.valid == 0) {
                modalobj.modal('hide');
                Message(res.message, '', 'warning');
            } else {
                var html = '<ul class="clearfix image-list-box">';
                $(res.data).each(function (i) {
                    html += '<li style="background-image: url(' + res.data[i].url + ');" path="' + res.data[i].path + '"></li>';
                });
                html += "</ul>";
                html += res.page;
                modalobj.find('#imagelists').html(html);
            }
        }, 'json');
    },
    show: function (callback, options) {
        this.options = options;
        //初始化POST数据
        options.data = options.data ? options.data : {};
        //后台管理时添加
        if (window.system) {
            options.data.user_type = window.system.user_type
        }
        //针对HDCMS的表单令牌处理
        if ($('meta[name="csrf-token"]').length > 0) {
            var csrf_token = $('meta[name="csrf-token"]').attr('content');
            options.data.csrf_token = csrf_token;
            options.data._token = csrf_token;
        }
        //成功上传的图片
        var images = [];
        switch (options.type) {
            case 'image':
                modalobj = modal({
                    id: 'hdWebUpload',
                    width: options.width,
                    title: '<ul class="nav nav-pills nav-hd-upload" role="tablist">\
                    <li role="presentation" class="active"><a href="#upload" aria-controls="home" role="tab" data-toggle="tab">上传图片</a></li>\
                    <li role="presentation"><a href="#imagelistsBox" aria-controls="profile" role="tab" data-toggle="tab">浏览图片</a></li>\
                    </ul>',
                    content: ' <div class="tab-content">\
                    <div role="tabpanel" class="tab-pane active" id="upload"><div id="wrapper">\
                          <div id="container">\
                        <div id="uploader">\
                            <div class="queueList">\
                            <div id="dndArea" class="placeholder">\
                            <div id="filePicker"></div>\
                            <p>或将照片拖到这里</p>\
                        </div>\
                        </div>\
                        <div class="statusBar">\
                            <div class="progress">\
                            <span class="text">0%</span>\
                            <span class="percentage"></span>\
                            </div><div class="info"></div>\
                            <div class="btns">\
                            <div class="btn btn-default" data-dismiss="modal">取消</div>\
                            <div class="btn btn-primary uploadBtn">确定使用</div>\
                            </div> </div> </div> </div> </div></div>\
                    <div role="tabpanel" class="tab-pane" id="imagelistsBox">\
                        <div id="imagelists"></div>\
                    </div>\
                </div>\
                ',
                    events: {
                        'shown.bs.modal': function () {
                            if (options.multiple) {
                                $("#imagelistsBox").append('<br/><div class="text-right"><div class="btn btn-default" data-dismiss="modal">取消</div> <div class="btn btn-primary uploadSelectFiles">确定使用</div></div>');
                            }
                            obj.getImageList(hdjs.filesLists + '&type=image');
                            //分页处理
                            modalobj.delegate('#imagelists .pagination a', 'click', function () {
                                obj.getImageList($(this).attr('href'));
                                return false;
                            });
                            //选中图片
                            modalobj.delegate('#imagelists li', 'click', function () {
                                $(this).toggleClass('selectActive');
                                images = [];
                                $("#imagelists li.selectActive").each(function () {
                                    images.push($(this).attr('path'));
                                })
                                if (!options.multiple) {
                                    modalobj.modal('hide');
                                }
                            });
                            //多图上传时选中确定选择的图片
                            modalobj.delegate('.uploadSelectFiles', 'click', function () {
                                modalobj.modal('hide');
                            });

                            //显示上传控件
                            var uploader = obj.initImageUploader({
                                accept: {
                                    title: 'Images',
                                    extensions: options.extensions,//允许上传的文件类型
                                    mimeTypes: 'image/jpg,image/jpeg,image/png,image/gif'
                                },
                                compress: false,
                                formData: options.data,
                                multiple: options.multiple,
                                fileNumLimit: 100,//允许上传的文件数量
                                fileSizeLimit: 200 * 1024 * 1024,    // 200 M 允许上传文件大小
                                fileSingleSizeLimit: 2 * 1024 * 1024    // 2 M 单个文件上传大小
                            });
                            uploader.on('uploadAccept', function (file, response) {
                                if (response.valid !== undefined) {
                                    if (response.valid) {
                                        images.push(response.message);
                                        return true;
                                    } else {
                                        //上传失败
                                        Message('上传失败, ' + response.message, '', 'info', 5);
                                        uploader.removeFile(file.file);
                                        return false;
                                    }
                                } else {
                                    Message(response._raw, '', 'info', 5);
                                }
                            });
                        },
                        'hide.bs.modal': function () {
                            callback(images);
                        },
                        'hidden.bs.modal': function () {
                            modalobj.remove();
                        }
                    }
                });
                break;
            case 'file':
                //上传文件
                modalobj = modal({
                    id: 'hdWebUpload',
                    width: 700,
                    title: '<ul class="nav nav-pills nav-hd-upload" role="tablist">\
                    <li role="presentation" class="active"><a href="#upload" aria-controls="home" role="tab" data-toggle="tab">上传文件</a></li>\
                    <li role="presentation"><a href="#imagelists" aria-controls="profile" role="tab" data-toggle="tab">浏览文件</a></li>\
                    </ul>',
                    content: ' <div class="tab-content">\
                    <div role="tabpanel" class="tab-pane active" id="upload"><div id="wrapper">\
                          <div id="container">\
                        <div id="uploader">\
                            <div class="queueList">\
                            <div id="dndArea" class="placeholder">\
                            <div id="filePicker"></div>\
                            <p>或将文件拖到这里</p>\
                        </div>\
                        </div>\
                        <div class="statusBar">\
                            <div class="progress">\
                            <span class="text">0%</span>\
                            <span class="percentage"></span>\
                            </div><div class="info"></div>\
                            <div class="btns">\
                            <div class="btn btn-default" data-dismiss="modal">取消</div>\
                            <div class="btn btn-primary uploadBtn">确定使用</div>\
                            </div> </div> </div> </div> </div></div>\
                <div role="tabpanel" class="tab-pane" id="imagelists">\
                \
                </div>\
                </div>\
                ',
                    events: {
                        'shown.bs.modal': function () {
                            //加载远程文件
                            function getImageList(url) {
                                //添加获取的类型是后台用户还是前台用户
                                var post = {extensions: options.extensions};
                                if (window.system) {
                                    post.user_type = window.system.user_type
                                }
                                post.csrf_token = options.data.csrf_token;
                                $.post(url, post, function (res) {
                                    if (res.valid == 0) {
                                        modalobj.modal('hide');
                                        Message(res.message, '', 'warning');
                                    } else {
                                        var html = '<table class="table table-hover">' +
                                            '<tr><th>文件名</th><th>大小</th><th>创建时间</th></tr>';
                                        $(res.data).each(function (i) {
                                            html += '<tr><td><a href="javascript:;" src="' + res.data[i].path + '">' + res.data[i].name + '</a></td>' +
                                                '<td>' + res.data[i].size + '</td>' +
                                                '<td>' + res.data[i].createtime + '</td></tr>';
                                        })
                                        html += "</table>";
                                        html += res.page;
                                        modalobj.find('#imagelists').html(html);
                                    }
                                }, 'json');
                            }

                            getImageList(hdjs.filesLists + '&type=file');
                            //分页处理
                            modalobj.delegate('#imagelists .pagination a', 'click', function () {
                                var url = $(this).attr('href');
                                getImageList(url);
                                return false;
                            });
                            //选中图片
                            modalobj.delegate('#imagelists table a', 'click', function () {
                                var url = $(this).attr('src');
                                images.push(url);
                                modalobj.modal('hide');
                            });
                            //显示上传控件
                            var uploader = obj.initImageUploader({
                                accept: {
                                    title: 'file',
                                    extensions: options.extensions,//允许上传的文件类型
                                    // mimeTypes: 'image/jpg,image/jpeg,image/png,image/gif'
                                    // mimeTypes: '.' + options.extensions.replace(/,/g, ',.'),
                                    // mimeTypes: 'application/zip' ',.')
                                },
                                formData: options.data,
                                multiple: options.multiple,
                                fileNumLimit: 100,//允许上传的文件数量
                                fileSizeLimit: 200 * 1024 * 1024,    // 200 M 允许上传文件大小
                                fileSingleSizeLimit: options.fileSingleSizeLimit    // 2 M 单个文件上传大小
                            });
                            uploader.on('uploadAccept', function (file, response) {
                                if (response.valid) {
                                    images.push(response.message);
                                    return true;
                                } else {
                                    //上传失败
                                    alert('上传失败, ' + response.message);
                                    uploader.removeFile(file.file);
                                    return false;
                                }
                            });
                        },
                        'hide.bs.modal': function () {
                            callback(images);
                        },
                        'hidden.bs.modal': function () {
                            modalobj.remove();
                        }
                    }
                });
                break;
        }
    },
    initImageUploader: function (options) {
        var opt = $.extend({
            accept: {
                title: 'Images',
                extensions: 'jpg,jpeg,png',
                mimeTypes: 'image/jpg,image/jpeg,image/png'
            },
            // method: 'GET',
            multiple: false,//同时可以选多个文件
            fileNumLimit: 300,//允许上传的文件数量
            fileSizeLimit: 200 * 1024 * 1024,    // 200 M 允许上传文件大小
            fileSingleSizeLimit: 50 * 1024 * 1024    // 50 M 单个文件上传大小
        }, options);

        var $wrap = $('#uploader'),
            // 图片容器
            $queue = $('<ul class="filelist"></ul>')
                .appendTo($wrap.find('.queueList')),

            // 状态栏，包括进度和控制按钮
            $statusBar = $wrap.find('.statusBar'),

            // 文件总体选择信息。
            $info = $statusBar.find('.info'),

            // 上传按钮
            $upload = $wrap.find('.uploadBtn'),

            // 没选择文件之前的内容。
            $placeHolder = $wrap.find('.placeholder'),

            $progress = $statusBar.find('.progress').hide(),

            // 添加的文件数量
            fileCount = 0,

            // 添加的文件总大小
            fileSize = 0,

            // 优化retina, 在retina下这个值是2
            ratio = window.devicePixelRatio || 1,

            // 缩略图大小
            thumbnailWidth = 110 * ratio,
            thumbnailHeight = 110 * ratio,

            // 可能有pedding, ready, uploading, confirm, done.
            state = 'pedding',

            // 所有文件的进度信息，key为file id
            percentages = {},
            // 判断浏览器是否支持图片的base64
            isSupportBase64 = (function () {
                var data = new Image();
                var support = true;
                data.onload = data.onerror = function () {
                    if (this.width != 1 || this.height != 1) {
                        support = false;
                    }
                }
                data.src = "";
                return support;
            })(),

            // 检测是否已经安装flash，检测flash的版本
            flashVersion = (function () {
                var version;

                try {
                    version = navigator.plugins['Shockwave Flash'];
                    version = version.description;
                } catch (ex) {
                    try {
                        version = new ActiveXObject('ShockwaveFlash.ShockwaveFlash')
                            .GetVariable('$version');
                    } catch (ex2) {
                        version = '0.0';
                    }
                }
                version = version.match(/\d+/g);
                return parseFloat(version[0] + '.' + version[1], 10);
            })(),

            supportTransition = (function () {
                var s = document.createElement('p').style,
                    r = 'transition' in s ||
                        'WebkitTransition' in s ||
                        'MozTransition' in s ||
                        'msTransition' in s ||
                        'OTransition' in s;
                s = null;
                return r;
            })(),

            // WebUploader实例
            uploader;
        if (!WebUploader.Uploader.support('flash') && WebUploader.browser.ie) {
            // flash 安装了但是版本过低。
            if (flashVersion) {
                (function (container) {
                    window['expressinstallcallback'] = function (state) {
                        switch (state) {
                            case 'Download.Cancelled':
                                alert('您取消了更新！')
                                break;

                            case 'Download.Failed':
                                alert('安装失败')
                                break;

                            default:
                                alert('安装已成功，请刷新！');
                                break;
                        }
                        delete window['expressinstallcallback'];
                    };

                    var swf = 'resource/hdjs/component/webuploader/expressInstall.swf';
                    // insert flash object
                    var html = '<object type="application/' +
                        'x-shockwave-flash" data="' + swf + '" ';

                    if (WebUploader.browser.ie) {
                        html += 'classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" ';
                    }

                    html += 'width="100%" height="100%" style="outline:0">' +
                        '<param name="movie" value="' + swf + '" />' +
                        '<param name="wmode" value="transparent" />' +
                        '<param name="allowscriptaccess" value="always" />' +
                        '</object>';

                    container.html(html);

                })($wrap);

                // 压根就没有安转。
            } else {
                $wrap.html('<a href="http://www.adobe.com/go/getflashplayer" target="_blank" border="0"><img alt="get flash player" src="http://www.adobe.com/macromedia/style_guide/images/160x41_Get_Flash_Player.jpg" /></a>');
            }

            return;
        } else if (!WebUploader.Uploader.support()) {
            alert('Web Uploader 不支持您的浏览器！');
            return;
        }

        // 实例化
        var _options = $.extend({
            pick: {
                id: '#filePicker',
                label: '点击选择文件',
                multiple: opt.multiple,
            },
            formData: {},
            dnd: '#dndArea',
            paste: '#uploader',
            swf: hdjs.base + '/component/webuploader/Uploader.swf',
            chunked: false,
            chunkSize: 512 * 1024,
            server: hdjs.uploader,
            // runtimeOrder: 'flash',
            accept: opt.accept,//允许上传的文件类型
            // 禁掉全局的拖拽功能。这样不会出现图片拖进页面的时候，把图片打开。
            disableGlobalDnd: true,
            fileNumLimit: opt.fileNumLimit,//允许上传的文件数量
            fileSizeLimit: opt.fileSizeLimit,    // 200 M 允许上传文件大小
            fileSingleSizeLimit: opt.fileSingleSizeLimit    // 50 M 单个文件上传大小
        }, opt);
        uploader = WebUploader.create(_options);
        // 拖拽时不接受 js, txt 文件。
        uploader.on('dndAccept', function (items) {
            var denied = false,
                len = items.length,
                i = 0,
                // 修改js类型
                unAllowed = 'text/plain;application/javascript ';

            for (; i < len; i++) {
                // 如果在列表里面
                if (~unAllowed.indexOf(items[i].type)) {
                    denied = true;
                    break;
                }
            }

            return !denied;
        });

        // uploader.on('filesQueued', function() {
        //     uploader.sort(function( a, b ) {
        //         if ( a.name < b.name )
        //           return -1;
        //         if ( a.name > b.name )
        //           return 1;
        //         return 0;
        //     });
        // });

        // 添加“添加文件”的按钮，
        uploader.addButton({
            id: '#filePicker2',
            label: '继续添加'
        });

        uploader.on('ready', function () {
            window.uploader = uploader;
        });

        // 当有文件添加进来时执行，负责view的创建
        function addFile(file) {
            var $li = $('<li id="' + file.id + '">' +
                '<p class="title">' + file.name + '</p>' +
                '<p class="imgWrap"></p>' +
                //'<p class="progress"><span></span></p>' +
                '</li>'),

                $btns = $('<div class="file-panel">' +
                    '<span class="cancel">删除</span>' +
                    '<span class="rotateRight">向右旋转</span>' +
                    '<span class="rotateLeft">向左旋转</span></div>').appendTo($li),
                $prgress = $li.find('p.progress span'),
                $wrap = $li.find('p.imgWrap'),
                $info = $('<p class="error"></p>'),

                showError = function (code) {
                    switch (code) {
                        case 'exceed_size':
                            text = '文件大小超出';
                            break;

                        case 'interrupt':
                            text = '上传暂停';
                            break;

                        default:
                            text = '上传失败，请重试';
                            break;
                    }

                    $info.text(text).appendTo($li);
                };

            if (file.getStatus() === 'invalid') {
                showError(file.statusText);
            } else {
                // @todo lazyload
                $wrap.text('预览中');
                uploader.makeThumb(file, function (error, src) {
                    var img;

                    if (error) {
                        $wrap.text('不能预览');
                        return;
                    }

                    if (isSupportBase64) {
                        img = $('<img src="' + src + '">');
                        $wrap.empty().append(img);
                    } else {
                        $.ajax('../../server/preview.php', {
                            method: 'POST',
                            data: src,
                            dataType: 'json'
                        }).done(function (response) {
                            if (response.result) {
                                img = $('<img src="' + response.result + '">');
                                $wrap.empty().append(img);
                            } else {
                                $wrap.text("预览出错");
                            }
                        });
                    }
                }, thumbnailWidth, thumbnailHeight);

                percentages[file.id] = [file.size, 0];
                file.rotation = 0;
            }

            file.on('statuschange', function (cur, prev) {
                if (prev === 'progress') {
                    $prgress.hide().width(0);
                } else if (prev === 'queued') {
                    $li.off('mouseenter mouseleave');
                    $btns.remove();
                }

                // 成功
                if (cur === 'error' || cur === 'invalid') {
                    console.log(file.statusText);
                    showError(file.statusText);
                    percentages[file.id][1] = 1;
                } else if (cur === 'interrupt') {
                    showError('interrupt');
                } else if (cur === 'queued') {
                    percentages[file.id][1] = 0;
                } else if (cur === 'progress') {
                    $info.remove();
                    $prgress.css('display', 'block');
                } else if (cur === 'complete') {
                    $li.append('<span class="success"></span>');
                }

                $li.removeClass('state-' + prev).addClass('state-' + cur);
            });

            $li.on('mouseenter', function () {
                $btns.stop().animate({height: 30});
            });

            $li.on('mouseleave', function () {
                $btns.stop().animate({height: 0});
            });

            $btns.on('click', 'span', function () {
                var index = $(this).index(),
                    deg;

                switch (index) {
                    case 0:
                        uploader.removeFile(file);
                        return;

                    case 1:
                        file.rotation += 90;
                        break;

                    case 2:
                        file.rotation -= 90;
                        break;
                }

                if (supportTransition) {
                    deg = 'rotate(' + file.rotation + 'deg)';
                    $wrap.css({
                        '-webkit-transform': deg,
                        '-mos-transform': deg,
                        '-o-transform': deg,
                        'transform': deg
                    });
                } else {
                    $wrap.css('filter', 'progid:DXImageTransform.Microsoft.BasicImage(rotation=' + (~~((file.rotation / 90) % 4 + 4) % 4) + ')');
                    // use jquery animate to rotation
                    // $({
                    //     rotation: rotation
                    // }).animate({
                    //     rotation: file.rotation
                    // }, {
                    //     easing: 'linear',
                    //     step: function( now ) {
                    //         now = now * Math.PI / 180;

                    //         var cos = Math.cos( now ),
                    //             sin = Math.sin( now );

                    //         $wrap.css( 'filter', "progid:DXImageTransform.Microsoft.Matrix(M11=" + cos + ",M12=" + (-sin) + ",M21=" + sin + ",M22=" + cos + ",SizingMethod='auto expand')");
                    //     }
                    // });
                }


            });

            $li.appendTo($queue);
        }

        // 负责view的销毁
        function removeFile(file) {
            var $li = $('#' + file.id);

            delete percentages[file.id];
            updateTotalProgress();
            $li.off().find('.file-panel').off().end().remove();
        }

        function updateTotalProgress() {
            var loaded = 0,
                total = 0,
                spans = $progress.children(),
                percent;

            $.each(percentages, function (k, v) {
                total += v[0];
                loaded += v[0] * v[1];
            });

            percent = total ? loaded / total : 0;


            spans.eq(0).text(Math.round(percent * 100) + '%');
            spans.eq(1).css('width', Math.round(percent * 100) + '%');
            updateStatus();
        }

        function updateStatus() {
            var text = '', stats;

            if (state === 'ready') {
                text = '选中' + fileCount + '张图片，共' +
                    WebUploader.formatSize(fileSize) + '。';
            } else if (state === 'confirm') {
                stats = uploader.getStats();
                if (stats.uploadFailNum) {
                    text = '已成功上传' + stats.successNum + '个文件';
                }

            } else {
                stats = uploader.getStats();
                text = '共' + fileCount + '张（' +
                    WebUploader.formatSize(fileSize) +
                    '），已上传' + stats.successNum + '张';

                if (stats.uploadFailNum) {
                    text += '，失败' + stats.uploadFailNum + '张';
                }
            }

            $info.html(text);
        }

        function setState(val) {
            var file, stats;

            if (val === state) {
                return;
            }

            $upload.removeClass('state-' + state);
            $upload.addClass('state-' + val);
            state = val;

            switch (state) {
                case 'pedding':
                    $placeHolder.removeClass('element-invisible');
                    $queue.hide();
                    //$statusBar.addClass('element-invisible');
                    uploader.refresh();
                    break;

                case 'ready':
                    $placeHolder.addClass('element-invisible');
                    $('#filePicker2').removeClass('element-invisible');
                    $queue.show();
                    $statusBar.removeClass('element-invisible');
                    uploader.refresh();
                    break;

                case 'uploading':
                    $('#filePicker2').addClass('element-invisible');
                    $progress.show();
                    $upload.text('暂停上传');
                    break;

                case 'paused':
                    $progress.show();
                    $upload.text('继续上传');
                    break;

                case 'confirm':
                    $progress.hide();
                    $('#filePicker2').removeClass('element-invisible');
                    $upload.text('开始上传');

                    stats = uploader.getStats();
                    if (stats.successNum && !stats.uploadFailNum) {
                        setState('finish');
                        return;
                    }
                    break;
                case 'finish':
                    stats = uploader.getStats();
                    if (stats.successNum) {
                        //隐藏上传模态框
                        modalobj.modal('hide');
                        //alert('上传成功');
                    } else {
                        // 没有成功的图片，重设
                        state = 'done';
                        location.reload();
                    }
                    break;
            }

            updateStatus();
        }

        uploader.onUploadProgress = function (file, percentage) {
            var $li = $('#' + file.id),
                $percent = $li.find('.progress span');

            $percent.css('width', percentage * 100 + '%');
            percentages[file.id][1] = percentage;
            updateTotalProgress();
        };

        uploader.onFileQueued = function (file) {
            fileCount++;
            fileSize += file.size;

            if (fileCount === 1) {
                $placeHolder.addClass('element-invisible');
                $statusBar.show();
            }

            addFile(file);
            setState('ready');
            updateTotalProgress();
        };

        uploader.onFileDequeued = function (file) {
            fileCount--;
            fileSize -= file.size;

            if (!fileCount) {
                setState('pedding');
            }

            removeFile(file);
            updateTotalProgress();

        };

        uploader.on('all', function (type) {
            var stats;
            switch (type) {
                case 'uploadFinished':
                    setState('confirm');
                    break;

                case 'startUpload':
                    setState('uploading');
                    break;

                case 'stopUpload':
                    setState('paused');
                    break;

            }
        });

        uploader.onError = function (code) {
            alert('上传错误,请检测文件类型与大小');
            // alert('Eroor: ' + code);
        };

        $upload.on('click', function () {
            if ($(this).hasClass('disabled')) {
                return false;
            }

            if (state === 'ready') {
                uploader.upload();
            } else if (state === 'paused') {
                uploader.upload();
            } else if (state === 'uploading') {
                uploader.stop();
            }
        });

        $info.on('click', '.retry', function () {
            uploader.retry();
        });

        $info.on('click', '.ignore', function () {
            alert('todo');
        });

        $upload.addClass('state-' + state);
        updateTotalProgress();
        return uploader;
    }
}
export default obj;